The 20-year-old McDonald, a former Tachi Palace Fights champion, is 3-0 under the Zuffa banner with a WEC victory over Clint Godfrey and UFC wins over Edwin Figueroa (which earned a “Fight of the Night” award) and Chris Cariaso. The Brazilian jiu-jitsu brown belt has now won six straight fights. He meets Soto, a former U.S. Army war veteran and U.S. Navy dolphin trainer who now makes his UFC debut fresh off a six-fight win streak that recently was halted with a draw against Seiji Akao (15-4-1) at June’s DEEP 54 event in Japan.

As the UFC 189 tour made its last stop in Dublin, featherweight champ Jose Aldo was met with a torrent of abuse from the Irish fans. It might have been unpleasant, but it might also have been just what he needed.